Hi Chuck! SqueakNOS means Squeak No Operating System and is a project still in an early stage that search to use Squeak to boot up your machine (thats why No Operating System). I cant found so much now about basic networking but i think that what they meant to say is: we can detect a LAN and play a bit with it. I hope it means something to you, and sorry about my bad english... ;)
See you Sergio